A-Z Finder

 

T

    Target Instruction Level

    means the intended MW Output level for the Generator Unit to achieve which accompanies a Dispatch Instruction, for the purpose of Appendix O: “Instruction Profiling Calculations” only.

     

    Target Reservoir Level

    is part of the Commercial Offer Data for a Pumped Storage Unit and means the target reservoir level at the end of the Trading Day submitted in accordance with 5.113.

     

    Target Reservoir Level Percentage

    is part of the Technical Offer Data for a Pumped Storage Unit and means a percentage of 50% submitted in accordance with paragraph 5.119, which is multiplied by the Target Reservoir Level to derive a value of that target for the end of the Optimisation Time Horizon for use in the MSP Software.

     

    Technical Capability

    means the technical capabilities of a Generator Unit based on, as appropriate, either (1) Technical Offer Data submitted in accordance with Appendix I: “Offer Data” or (2) Generator Unit Technical Characteristics Data (and, where appropriate, Energy Limited Generator Unit Technical Characteristics Data) submitted in accordance with Appendix K: “Market Data Transactions”.

     

    Technical Offer Data

    means technical offer data in respect of a Generator Unit as set out in Appendix I: “Offer Data”.

    For more information on Technical Offer Data, please click here

    Termination

    means the termination of a person’s status as a Party in accordance with paragraphs 2.258 or 2.266, and “Terminate” and “Terminated Party” shall be construed accordingly.

     

    Termination Date

    means the date upon which a Termination takes effect in accordance with paragraph 2.260.

     

    Termination Order

    means an order from the Market Operator to a Party pursuant to paragraph 2.260 stating that the Party will be Terminated, or that any or all of its Units will be Deregistered.

     

    Testing Charge

    means a charge in respect of a Generator Unit Under Test in accordance with the Testing Tariff.

     

    Testing Tariff

    means the tariff applicable to Generator Units Under Test determined in accordance with paragraph 5.177.

     

    Testing Tariff Data Transaction

    is a Data Transaction in relation to Testing Tariffs detailed in Appendix K: “Market Data Transactions”.

    Tie-Break

    means the situation which arises when the MSP Software cannot differentiate between one or more Generator Units on the grounds of accepted Price Quantity Pairs and Technical Offer Data.  The MSP Software will resolve the order in which Generator Units are scheduled in accordance with paragraph 4.76.

     

    Tie-Breaking Adder

    means a value which is used to adjust Prices for individual Generator Units in the event of a Tie-Break, determined in accordance with Appendix N: “Operation of the MSP Software”.

     

    Timetabled Settlement Rerun

    means a Settlement Rerun carried out in accordance with the timeline specified in Section 6.

     

    Tolerance Band

    means an interval in MW around the Dispatch Quantity for that Generator Unit in that Trading Period within which a Generator Unit is charged for (or paid for, as appropriate) Uninstructed Imbalances at SMP when Metered Generation is within that Tolerance Band.

     

    Total Balance Sheet Assets

    means the sum of current and long-term assets set out in the published accounts of the company.

     

    Total Conventional Capacity

    means the summed capacity, rounded to the nearest whole MW, of Interconnectors and Generator Units other than Autonomous Generator Units, Demand Side Units, Wind Power Units, Interconnector Units and Interconnector Residual Capacity Units.

     

    Trading Boundary

    means a notional boundary between all points on the Transmission System and all points on the Distribution System.  The Trading Boundary is the notional balancing point for generation and supply and is the point of sale for trading in the SEM at which the title for all products and services settled through the trading arrangements set out in the Code transfers. All volumes traded or settled at the Trading Boundary are adjusted to reflect Transmission Losses and (where applicable) Distribution Losses.  For the avoidance of doubt, for all Supplier Units or Generator Units that are Distribution Connected, the Trading Boundary is not the specific boundary between the Transmission System and Distribution System for that Unit and so appropriate Combined Loss Adjustment Factors also apply to volumes associated with these Units in order to ensure that they are appropriately adjusted for Transmission Losses and Distribution Losses incurred as electricity is transported to (or from) the Trading Boundary from (or to) the relevant boundary of the Transmission System and the Distribution System for that Unit and then from (or to) the point of connection of that Unit.

     

    Trading Charges

    means all charges required to be made in respect of a Supplier Unit during a Trading Period and comprises Energy Charges and Imperfections Charges.

     

    Trading Day

    means the period commencing at 06:00 each day and ending at 06:00 the next day.

    For more information on the Trading Day, please click here(link to factsheet, how does the market run each day)

     

    Trading Day Exchange Rate

    means the exchange rate between pounds sterling and euro for the next Trading Day set at 08:00 the day before the Trading Day.

     

    Trading Payments

    means payments to Participants in respect of their Generator Units over a Billing Period.  Such payments will comprise Energy Payments, Constraint Payments, Uninstructed Imbalance Payments and Make Whole Payments less any Testing Charges.

     

    Trading Period

    means a thirty minute period beginning on each hour or half-hour.

     

    Trading Period Boundaries

    means the boundaries between adjacent Trading Periods for the purpose of Appendix O: “Instruction Profiling Calculations” only.

     

    Trading Site

    means one or more Generator Units and at most one Trading Site Supplier Unit of which, with the exception of Trading Sites that contain Generator Units that are Aggregated Generator Units, all Generator Units are covered by a single Connection Agreement, or in the event that no Connection Agreement exists, all such Units are located on a Contiguous Site, or as described in paragraphs 2.62 to 2.68

     

    Trading Site Supplier Unit

    means a Supplier Unit that contains only the Demand within a Trading Site, and is settled on a net basis against the Generator Units on that Trading Site under the rules specified in the Code.

     

    Transmission Asset Owner

    means, in respect of Ireland, the Transmission System owner for the time being licensed under section 14(1)(f) of the Electricity Regulation Act, 1999 (Ireland) and, in respect of Northern Ireland, means the Transmission Owner licensed for the time being under Article 10(1)(b) of the Electricity (Northern Ireland) Order 1992 and references to the “Transmission Asset Owners” shall be construed accordingly.

     

    Transmission Connected

    means directly connected electrically to Transmission System.

     

    Transmission Loss Adjustment Factor or TLAF

    means the factor for each Unit in each Trading Period to adjust the Output or Demand of that Unit for the effect of Transmission Losses and as otherwise provided for in the Code, determined in accordance with paragraph 4.42A.

     

    Transmission Losses

    means losses that are incurred (or avoided) on the Transmission System as electricity is transported to (or from) the Trading Boundary from (or to) the relevant point of Connection to the Transmission System for the Generator Unit or Supplier Unit.

     

    Transmission Network

    means the network as specified in the Grid Code.

     

    Transmission System

    means, in respect of Ireland, a system which consists wholly or mainly of high voltage lines and electric plant and which is used for conveying electricity from a generating station to a substation, from one generating station to another, from one substation to another or to or from any Interconnector or to final customers, but shall not include any such lines which may from time to time, with the approval of the Commission, be specified as being part of the Distribution System and shall not include any Interconnector; and

    means, in respect of Northern Ireland, the system of electric lines owned by the Transmission Asset Owner and comprising high voltage lines and electrical plant and meters used for conveying electricity from a generating station to a substation, from one generating station to another, and from one substation to another within the Transmission Asset Owner’s authorised transmission area and any other and any other electric lines which the NIAUR may specify as forming part of the transmission system, but shall not include any such lines specified as being part of the Distribution System and shall not include any Interconnector.

    “Transmission System for Ireland” and “Transmission System for Northern Ireland” shall be construed accordingly.

     

    Type 1 Channel

    means the type of Communication Channel defined in paragraph 3.7 as a Type 1 Channel and more particularly described in Agreed Procedure 4 “Transaction Submission and Validation”.

     

    Type 2 Channel

    means the type of Communication Channel defined in paragraph 3.7 as a Type 2 Channel and more particularly described in Agreed Procedure 4 “Transaction Submission and Validation”.

     

    Type 3 Channel

    means the type of Communication Channel defined in paragraph 3.7 as a Type 3 Channel and as more particularly described in Agreed Procedure 4 “Transaction Submission and Validation”.

     

SEMO is a joint venture between EirGrid PLC and SONI Limited